diff --git a/compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryLayoutImpl.kt b/compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryLayoutImpl.kt
index 8476fe3aa0b..16fec7caef1 100644
--- a/compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryLayoutImpl.kt
+++ b/compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryLayoutImpl.kt
@@ -138,6 +138,8 @@ class ExtractingIrLibraryImpl(val zipped: IrLibraryLayoutImpl) :
 
     override val irTypes: File by lazy { zipped.extract(zipped.irTypes) }
 
+    override val irSignatures: File by lazy { zipped.extract(zipped.irSignatures) }
+
     override val irStrings: File by lazy { zipped.extract(zipped.irStrings) }
 
     override val irBodies: File by lazy { zipped.extract(zipped.irBodies) }